She has just back from a romantic Caribbean getaway and newly engaged Geri Halliwell and Christian Horner looked happier than ever.

The couple attended the opening of The London Classic Car Show at the ExCeL exhibition centre in London's Docklands last week and cuddled up together as they posed for pictures.

Sporting light tans from their vacations, the besotted pair were positively glowing as the stood with their arms around each other.

Bride and groom to be: Geri Halliwell and Christian Horner cosied up for a picture as they checked out the classic car show in London last week

One picture of the pair has been donated to Zoom, a charity initiative to raise money for Great Ormond Street Hospital, which is hosting a fundraising on Friday where photos from F1 drivers and celebrities will be auctioned off.

Halliwell posted many pictures on Instagram, documenting their break and even shared with fans details of a disastrous fishing trip they took.

Don't quit the day job! Geri Halliwell's fishing expedition didn't quite go to plan as the Spice Girl only managed to catch this tiny fish in St Lucia

Loved up; Geri and her fiance Christian Horner have been enjoying a romantic reunion in St Lucia after spending Christmas apart

Clearly amused by their lack of success, Geri posted a snap of herself holding one tiny fish to her Instagram account.

She captioned the hilarious snap, 'Erh maybe not ..... Catch of the day - great expectations.'

The 42-year-old was decked out in a red bikini which she wore under a cream blouse, topping off her look with a pair of sunglasses for the occasion.

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An earlier snap saw her sitting in a chair on the same boat as she wielded a giant fishing rod, with the caption: 'Great expectations .....it's gonna be big ...'

Later on, Geri and her man indulged in a spot of sightseeing, with Geri standing underneath a sign which read, 'Ginger,' a reference to her Spice Girl nickname.

On Friday, the singer found herself back on the stage as she enjoyed some of the evening's entertainment on offer.

Life of leisure: Geri has been enjoying a romantic holiday with her Formula One boss fiance

Wearing a frilly flamenco style dress and gold sandals, she stood next to a man playing guitar, although it's not clear if she decided to belt out a tune or two.

Geri and her fiance have been enjoying a sunshine break together after spending Christmas apart.

Christian is believed to have spent Christmas with his ex-girlfriend Beverly Allen and their one-year-old daughter Olivia before he and Geri jetted out of Gatwick Airport together just a few days later.

And the pair appear happier than ever, despite recent claims that his family will not be attending their nuptials.

Ginger Spice forever: Geri shared this picture of her standing under a sign saying 'Ginger', her Spice Girls name

'You can say that his parents are absolutely devastated. We won’t be going to the wedding,' a family friend recently told the Sunday Mirror of the engagement.

'They’re very upset by everything that has gone on and feel as though their loyalties are very divided.'

According to the paper, Christian's parents Garry and Sara do not approve of their son's new romance after he left partner of 14 years, Beverley, months after the birth of their first child.

Christian is also step-father to his former partner's two sons Kieron, 25, and Liam, 21, from a previous relationship.

Geri has her own eight-year old daughter Bluebell from her relationship with American screenwriter Sacha Gervasi.

Always the performer: Geri couldn't resist joining a local musician on stage as she enjoyed her relaxed vacation